27
CHAPTER 3
Operation
Power-Up Check
When power is first applied to the US-2002, it performs a power-up reset, in which the front panel indicators cycles through all
of the possible colors and then turn off. This verifies the general operation of the intercom station and indicators. The US-2002
also reads the settings of all DIP switches at this time and configures itself accordingly.
To
perform a power-up check
, do the following:
1.
Plug in any
PA-KP local power supplies
being used.
2.
Turn on any
system power supplies
being used.
Test Tone
The US-2002 can generate a test tone, which is used to verify intercom channel operation after installation or to locate a
malfunction. This test tone is also used for the sidetone adjustment, see “Sidetone Adjustment” on page 28.
To
use the test tone
, do the following:
1.
Simultaneously press the
All Talk
and
PA
keys to activate the test tone.
2.
Tap the
Call
key for the channel you want to test (can be either US-2002 channel or an ES-4000A channel).
3.
Verify the
test tone
can be heard at all intercom stations on the channel.
4.
Replace any
defective cables
or
intercom stations
where the test tone is being lost.
5.
Tap the same
Call
key
to stop the test signal on that channel.
6.
Press
any key
, except a Call key, to turn off the test tone.
Summary of Contents for Audiocom US-2002
Page 4: ......
Page 6: ...4 Features FIGURE 1 US 2002 Reference View See Reference Descriptions on page 5 ...
Page 8: ...6 ...
Page 28: ...26 FIGURE 15 Audiocom Intercom Cables ...
Page 38: ......
